<img src=https://huaweicloudobs.ahjxjy.cn/AE145A76D0B79CE0EAD9951301A22AB6.png title=QQ图片20160105200949.png alt=QQ图片20160105200949.png/>下列选项中判断正确的是( )。
①
<img src=https://huaweicloudobs.ahjxjy.cn/54EC50F93375620F277DD64EA7306B57.png title=QQ图片20160105201020.png alt=QQ图片20160105201020.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/6D5CD2D9459C3E10E46A92C32C7FEB96.png title=QQ图片20160105201043.png alt=QQ图片20160105201043.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/18F392BCEB2B74FEC9A718524A66B5E3.png title=QQ图片20160105201105.png alt=QQ图片20160105201105.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/8A2F83E02BF4DF0CD53E832DF3897BFB.png title=QQ图片20160105201121.png alt=QQ图片20160105201121.png/>